Home / 141,404.92-195,131.28-77,730.48

Finding the Fourth Proportional to 141,404.92, 195,131.28 and 77,730.48

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Solution

The fourth proportional to 141,404.92, 195,131.28 and 77,730.48 is: 107,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,404.92 : 195,131.28 = 77,730.48 : x
  2. Step 2: Convert to fraction form
    141,404.92/195,131.28 = 77,730.48/x
  3. Step 3: Cross multiply
    141,404.92x = 195,131.28 × 77,730.48
  4. Step 4: Simplify right side
    141,404.92x = 15,167,648,057.41
  5. Step 5: Solve for x
    x = 15,167,648,057.41/141,404.92
  6. Step 6: Final answer
    x = 107,263.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.